The pain inside the ribs below the heart is clinically considered for the following reasons: First, insufficient blood supply to the heart in coronary artery disease. This patient may have had previous risk factors for coronary artery disease such as hypertension, and the symptoms appear under activity or emotional agitation, and can be relieved by applying medication or rest. Second, hypertrophic cardiomyopathy, this disease can also be manifested as pain inside the rib cage below the heart, mainly due to left ventricular outflow tract stenosis, examination of cardiac ultrasound can help diagnose. Third, cardiac neuropathy, this patient can also appear this pain, often related to the emotions, activities can help to reduce, if necessary, you can take glutathione and other treatment. Fourth, pneumonia can also appear as pain in this area, but such patients are often accompanied by fever, cough and other symptoms, and CT of the lungs can help in the diagnosis. Fifth, local rib lesions, such as rib fractures, can be diagnosed by X-ray rib dot film and 3D CT examination of the thorax. Sixth, if there is pain inside the rib cage under the heart, especially near the sternal process, we should pay attention to the possibility of gastritis and gastric ulcer, especially if the pain and discomfort here is aggravated by acid reflux after eating, we should suspect stomach diseases, and if necessary, gastroscopy can be performed to clarify the diagnosis.